Unitary rotary valve



my 5g w32,4

I mlll UNITARY ROTARY VALVE Filed Feb. 1b, 1951 zo z2 Inventors A flame y Patented July 5, 1932 UNITED STATES GEORGE W. WRIGHT, OF LEWISTON', IDAHO 'UNITARY yROTARY VALvE Application filed 'February 10, 1931. Serial No. 514,888.

a unitary 'valve that is smooth and noiseless.

in its action, that will notbecome worn unevenly and will therefore eliminate knocking, )i and whereby the necessity for 1re-grinding and the consequent expense is obviated. Other objects are to provide a valve that is simple and durable inrconstruction, reliable and efficient in operation, and which may be 1 manufactured at comparatively small cost. j With the above and other objects in view which willappear as the description proceeds, Y

the invention consists of the novel construction, adaptation, combination and arrange!I Bf ment of parts hereinafter,described,` and claimed. These objects are accomplished by devices illustrated in the accompanying drawing; wherein n a Figure 1 is a view in side elevationshow- 3 ing my device installedon an internal combustion engine; Y

Fig. 2 is a top plan view of the upper or rotary disc member and its actuating pinion with parts shown in horizontal section along a broken line 2, 2 of Fig. 3; Y

Fig. 3 is a view in central vertical section of the device;

Fig. 4 is a view in horizontal section taken l on a broken line 4:, 4; of Fig. 3 and'showing the rotary disc member in bottom plan; Fig. 5 is a view in horizontal section taken on a broken line 5, 5 of Fig. 3 and showing the stationary disc member in top plan; and N. Fi 6 is an enlarged'view in endelevation showlng the device mounted on fragmentary portions of an internal combustion engine. Referring to the drawing throughout which like reference numerals indicate like r parts, the numeral 5 designates the rotary "o disc member of the device that is horizontally vdisposed and kprovided with a relatively long depending stem 6 that is shrunk, brazedl or otherwise xedly lconnected tothe center ofi said disc. Said stem is hollowedbya conduit 7 extending upwardly therethrough and hori- 55" zontally through one side portion of the disc as at 8. The outer `end of saidconduit is` centrally connectedwith agroove 9 on'the, undersideof said disc near its outer edge and concentrically extendin nearly one-quarterco of its circumference. ne quarter around said circumference from said groove another` correspondingjgroove 10 is provided on the` underside of said disc which groove is'cen-kv trally providedwith anoffset' or tail portion 65" 11 extending concentrically about one-half the distance to the Ycenter of said disc member.

The lolwerendof the hollow stem 6 is supported by abearing 12 fixed to an engine cas-v ing 13 and a pipe 14 connects said end with the carburetor 15 of the engine. Said pipe. extends into the lower-'end of said stem anda cup nut 16 on the bottom of thestem serves as retaining means for a packing gland y1"( that is interposed between the connecting portions of said stem and pipe. Said pipe has a bearing flange 18 on its upper end'and it will: be obvious that the stem may rotate. freely thereon and the fuel may therefore pass from said carburetor through said pipe and through the conduits 7 and 8 into the groove 9.I Thediscmember 5 is providedwith gear? teeth 19 around its periphery and a pinion 20 in mesh therewith is fixed/to the .upper end of a vertical sha'ft21 whose lower end may be connected by a chain of timing gears with the main or crank shaft of the engine in the regular manner and in such ratio that the disc member will lmake one revolution for each two revolutions of the crankshaft for a four'cycle engine as willbe understood.

. The under face ofthefrotary disc member 5 is dressed smoothly and a stationary disc member 22, correspondinglydressed on itsl upper surface and of a correspondingvdiameter, fits flush againstthefunderside of said upper or rotary disc. Said stationary disc is provided withl a plurality of ports`23 ex-* tending therethrough in equal spaced relation around its' outer edge portion and disposed100 directly in the path of the two grooves 9 and 10 of the rotary disc. There are one each of such ports for each cylinder of the engine tov which the device is attached and a pipe 24 leads from each of said ports to said cylinders as shown in the drawing thus completing the intake means. rl"he upper face of said stationary disc is provided with a con centric ring groove 25 that is disposed continuously in the path of the offset or tail portion l1 of the groove Vl0 in therotary. discand a port 26 extending from said1 ring 'groove through the stationary disc has 'an exhaust pipe 27 connected thereto thus completing the 15 exhaust line of the device.`

. The pipes 24 serve as a partial support -or the'v stationary discinember` 22"'and. brackets 2.8,"eonne1cte`d thereto and to `the`engine casingl complete its supporting means. Saidv stationary'disc serves as a support'ffor the rotary disc member 5`whos'e stem 6 is journaledthrough a port 29 inthe center ofthe st'ationa'ryr disc and a coiledspring, 30. disposed 'aroundnsaid stem and interposed be-A ltween" thev stationary disc and thelower portioni'of the stein may be provided for the pur- `posevof.resilientlyholding saidtwo discs togetherfto form a lock tight connection( Re'ferring particularly to `Fig. 2 of the 3o-.drawing assuming that the rotary disc i nlienberjiisf rotating` in a"cl,ockwiseA direction as; indicated bythe; direction arrow and alsoV liealig in rmind that the englunder discussiongisna/ viour cyclefenginemaking two Y=1revolutions to complete its intake, compres# sion, power and exhaust strokesfor veach cyl-V inder and for each revolutionvof the rotary disc member, said rotary disc will come back.

tofits starting point atthe exact time the cylinders complete their cycles,v AThe cylinder Y Whose port 23j and pipe Y.2f4is in: registry'with the groove'Q as shown in Fig. 2 is engaged on itsintake strokel and. istaking fuel from the Chib11.15?t@.1tA 15V through the pipe Maud conduits 7f and 8, The compression and power strokes of this particular cylinder will take placeduring the passage of the comparatively wideblank spacevbetween said intake groove likewise connected to the engine crank shaft at correspondingly regular distances.

Itwill now be apparent that- I have provided a. rotary valve of simple and durable construction, that is direct acting and efcient in operation, which will run smoothly with little wear and expense of upkeep, and which mayl be "manufactured at a comparatively small cost'. `Having thus described my invention, it being understood that minor changes may bey resorted to in its construction andarrangeinent without departing from the scope spirit of the invention, what I Aclaim and desire to secure by Letters Patent oftheUnited States'i's'f rlhe, combination with a multi-cylinder internai combustion engindof a u uitaryfrotaiy valvel comprising afroftary disc., member, a de -V pending S/Il for said disc having. a cndliit therethrough, Said @enduit extadhglht'eral.- ly through a' portion df therotary discand'terminating in a concentricgroove on its under` side, said station',ary4 disc havinganother corresponding groove on, its underside disposed at one-quarter circumference from1 the` firstL named grooye, said'stem reyolfu'bly vconnected with the carburetor pipe of the engine, a sta#4 tionary disc membersupportedby the engine andV supporting'the'` rotary disc, meansfioriv causing'one revolutionfof theJM rotaryv dise for.

each two re volzu'vtions of the engineshaft, said stem vextending, through a center h ole Of the stationary disc,spring 'meansfr retaining the, two'fdiscs: in'i reyoluble engage,- Hient, seid. Stationary dscharihg, l Pllilfhlt-X of. Sbacedholes therethrough disposed inthe path Of. the two; aforesaid grooves 011" the underside of the rotary disc, a pipe 'connect-f ing each of said holeswith a cylinder of the engine, and vsaid stationary disc havingf "a: concentric ring Ygroove 011i QS., upper facey with' a holefextendingthrough 'whereby an exhaustpassage isestablished for the intakeonduit at each revolution of they 'IfQLITy diSC- y A( L GEORGE w; vynreirr 91and the exhaust groove 1-0 of the rotary disc 50. which space extends substantially halfthe diameter of said disc. i Y

The'exhaust groove 1,0 which is positionedthree-quarters around to the left or lin 'a counter-clockwise direction rom'the intake groove willitherefore register with the pipe 24 froml theparticular cylinder under presconsiderationatthe timev itsH exhaust, stroke istaking place andpwill come back to YAYitsj initialI point'when the intakestroke again,

takes vp laicefthus con'quoleting its cycle', rl`he` foregoing described action is true of. all, the other'cylinders Whose intake pipes 244.- are 'tio'nary' discA whose, connecting. rods are 

